Today in Trumpworld -- July 19

10 a.m.: President Donald Trump will receive a National Security Council briefing in the Situation Room.

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11:30 a.m.: Trump will meet with U.S. Ambassador to China Terry Branstad in the Oval Office.

12:30 p.m.: Trump will have lunch with members of Congress in the State Dining Room.

3 p.m.: Trump will lead a Made in America roundtable in the State Dining Room.

OTHER HAPPENINGS: Vice President Mike Pence will participate in the first meeting of the Presidential Advisory Commission on Election Integrity, the council formed to investigate the president's claims of voter fraud.

TRUMP'S TWITTER THIS MORNING: "I will be having lunch at the White House today with Republican Senators concerning healthcare. They MUST keep their promise to America!" followed by “The Republicans never discuss how good their healthcare bill is, & it will get even better at lunchtime.The Dems scream death as OCare dies!”

NOW WHAT?:From POLITICO's Nancy Cook and Josh Dawsey: "With President Donald Trump’s effort to undo Obamacare derailed by opposition from Republican senators, the White House has turned its attention to its next big shot at a big win: tax reform. The long-held GOP goal of re-engineering the U.S. tax system has now become a political imperative for the Trump administration, which has yet to deliver any major legislative victories despite Republican control of the White House and both houses of Congress. 'They know they could really use a win,' said Larry Kudlow, an informal economic adviser to the Trump campaign, who met with Trump last week. 'The president, from the get-go, has been much more comfortable with tax cuts than health care.' Donors and influential Republicans are particularly eager to see tax reform completed before the 2018 midterms — both for their own bottom lines and because it will be harder for Republicans to hold on to Congress without policy accomplishments, White House advisers and outside supporters fear."

ANOTHER PUTIN MEETING:From AP's Vivian Salama and Jill Colvin: "President Donald Trump had another, previously undisclosed conversation with Russian President Vladimir Putin at a summit in Germany this month. White House spokesman Sean Spicer and National Security Council spokesman Michael Anton confirmed that Trump and Putin spoke at a dinner for world leaders and their spouses at the Group of 20 summit in Hamburg, Germany. The conversation came hours after Trump and Putin’s first official face-to-face meeting on July 7, which was originally scheduled to last just half an hour but stretched on for more than two. The two world leaders were also captured on video shaking hands and exchanging a few words after they arrived at the G-20 summit of industrialized and developing nations earlier that day."

INSIDE THE HEALTH CARE COLLAPSE:From the New York Times' Jennifer Steinhauer, Glenn Thrush and Robert Pear: "President Trump was fed up with the grind of health care legislation, and at a dinner with Republican senators on Monday at the White House, he let them know it. He told the lawmakers how annoyed he was with one Republican who was not there, Senator Rand Paul of Kentucky, who had gone on television over the weekend to oppose a Senate health care bill that once held the promise of victory for Mr. Trump. It is one thing to vote no, Mr. Trump told the group, according to one of the guests. It is another, the president said, to go on all of the Sunday shows and complain about it. The scene on Monday night was an exasperating end for Mr. Trump to a month of negotiations between the White House and Senate Republicans in an effort to repeal the Affordable Care Act, President Barack Obama’s signature domestic legacy. The Senate bill, which faced a near-impossible path forward after the House passed its version of the legislation in May, was ultimately defeated by deep divisions within the party, a lack of a viable health care alternative and a president who, one staff member said, was growing bored in selling the bill and often undermined the best-laid plans of his aides with a quip or a tweet."